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<center>File system: <b>adfs</b></center>
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The file system Adfs was based on the rare Acord Winchester Filing System. It was renamed to the <b>Advanced Disc Filing System</b> when support for floppy discs was added. Acorn's original Disc Filing System was rather limited in that few files could be stored on a disk, and directory and file names were restricted to 1 and 7 characters respectively. To overcome some of these restrictions Acorn developed ADFS. The most dramatic change was the introduction of a hierarchical directory structure. The filename length increased from 7 to 10 letters and the number of files in a directory expanded to 47. This file system is used for floppy disks.
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